By Scott Saunders FROM STAMFORD BRIDGE: As the saying goes, old habits die hard. Manchester United have a long list of bad habits. And in one of the craziest, most unserious and out of control Premier League matches we’ve ever witnessed on Thursday night at Stamford Bridge, we got to see them all. Chelsea, for the billions spent, have a multitude of problems of their own, and even after snatching victory from the jaws of defeat on the night still sit tenth in standings. Perhaps Europe is possible. But Cole Palmer’s beyond added time double ensured the spotlight and scrutiny sat again on the br…